[go: up one dir, main page]

WO2022005032A1 - Module de batterie, bloc-batterie le comprenant et véhicule - Google Patents

Module de batterie, bloc-batterie le comprenant et véhicule Download PDF

Info

Publication number
WO2022005032A1
WO2022005032A1 PCT/KR2021/006947 KR2021006947W WO2022005032A1 WO 2022005032 A1 WO2022005032 A1 WO 2022005032A1 KR 2021006947 W KR2021006947 W KR 2021006947W WO 2022005032 A1 WO2022005032 A1 WO 2022005032A1
Authority
WO
WIPO (PCT)
Prior art keywords
bus bar
battery module
positive terminal
connecting member
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2021/006947
Other languages
English (en)
Korean (ko)
Inventor
이범직
손영수
정석원
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Energy Solution Ltd
Original Assignee
LG Energy Solution Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LG Energy Solution Ltd filed Critical LG Energy Solution Ltd
Priority to EP21832306.1A priority Critical patent/EP4109662A4/fr
Priority to JP2022552473A priority patent/JP7575471B2/ja
Priority to CN202180023866.2A priority patent/CN115336098B/zh
Priority to US17/909,134 priority patent/US12394869B2/en
Publication of WO2022005032A1 publication Critical patent/WO2022005032A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
    • H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a battery module, a battery pack including the same, and a vehicle, and more particularly, a battery module that secures reliability of electrical connection between internal components and increases durability of a product, a battery pack including the same, and a vehicle is about
  • lithium secondary batteries have almost no memory effect compared to nickel-based secondary batteries, so charging and discharging are free, The self-discharge rate is very low and the energy density is high, attracting attention.
  • an electrical connection between the plurality of battery cells is made using a bus bar.
  • a battery module applied to an environment to which a strong shock or vibration is applied such as a vehicle, needs to maintain a stable electrical connection between a plurality of battery cells. That is, when deformation or damage of internal components of the bus bar occurs during the manufacturing stage or after manufacturing of the battery module, stable electrical connection between the plurality of battery cells cannot be maintained, resulting in poor detection of the amount of current of the BMS, Problems such as poor calculation of the electric capacity of the battery or a decrease in the output of the battery module may occur.
  • the present invention has been devised to solve the above problems, and it is an object of the present invention to provide a battery module, a battery pack including the same, and a vehicle, which secures the reliability of electrical connection between internal components and increases the durability of the product. do it with
  • the battery module according to the present invention for achieving the above object,
  • a plurality of cylindrical battery cells provided with a positive terminal and a negative terminal on one side;
  • bus bar having an electrically conductive material and having a plate shape
  • An electrically conductive material is provided, the body has an elongated shape, one end in the extending direction of the body is joined to the bus bar, the other end is joined to any one of the positive terminal and the negative terminal, and the positive terminal and at least two or more types of connection members having different bonding areas according to the terminals to be bonded among the negative terminals.
  • the positive terminal has a larger outer surface area exposed to the outside than the negative terminal
  • connection members include a first connection member connected to the negative terminal and a second connection member connected to the positive terminal,
  • a bonding area between the second connection member and the positive terminal may be larger than a bonding area of the first connection member with the negative terminal.
  • a second connecting member having a shape of a strap elongated in the longitudinal direction may be provided.
  • a first exposure port having an inner space accommodating the plurality of cylindrical battery cells therein, mounting the bus bar on the outside, exposing at least a portion of the negative terminal to the outside, and exposing at least a portion of the positive terminal It may further include a module case having a second exposure hole.
  • An insertion groove may be provided in a portion of the protrusion so that a portion of the connecting member is inserted.
  • bus bar is
  • a connecting portion protruding from the extension portion toward the positive terminal or the negative terminal and configured to be joined to a portion of the connecting member may be provided.
  • the plurality of cylindrical battery cells are arranged in a plurality of rows and columns,
  • the bus bar may extend in a zigzag direction along an arrangement direction of the plurality of cylindrical battery cells.
  • the bus bar may be provided with a fixing protrusion from which a part of the connection part protrudes.
  • the battery pack of the present invention for achieving the above object includes at least one or more of the battery modules.
  • the vehicle of the present invention for achieving the above object includes at least one or more of the battery module.
  • the outer surface area of the positive terminal or the negative terminal is reduced. Accordingly, the bonding area of the connecting member may be optimized.
  • the present invention can set the bonding area differently depending on the type of terminal to which at least two or more types of connection members are bonded. have. That is, in the present invention, for example, when the area of the positive terminal is larger than that of the negative terminal, a different type of connection member may be applied to increase the bonding area. Accordingly, according to the present invention, even when the battery module is mounted on a vehicle exposed to an environment where frequent vibrations and shocks occur, it is possible to effectively reduce the separation of the joint between the connecting member and the positive terminal or the negative terminal. Ultimately, it is possible to effectively improve the durability of the battery module.
  • the extension length of the connecting member can be minimized. That is, since a portion of the bus bar is configured to be adjacent to the positive terminal or the negative terminal, the extension length of the connecting member configured to connect the connecting portion and the positive terminal or the negative terminal to each other can be minimized. Accordingly, the present invention can effectively reduce the increase in material cost as the length of the connecting member increases, and the increase in the risk of disconnection due to collision with an external material.
  • FIG. 1 is a perspective view schematically showing a state of a battery module according to an embodiment of the present invention.
  • FIG. 2 is an exploded perspective view schematically illustrating the appearance of some components of a battery module according to an embodiment of the present invention.
  • FIG 3 is a right side view schematically showing a state of a battery module according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view schematically illustrating a state cut along area A of FIG. 3 .
  • FIG. 5 is a perspective view schematically illustrating a state of a first connection member of a battery module according to an embodiment of the present invention.
  • FIG. 6 is a perspective view schematically illustrating a state of a second connection member of a battery module according to an embodiment of the present invention.
  • FIG. 7 is a partial right side view schematically showing a part of a battery module according to another embodiment of the present invention.
  • FIG. 1 is a perspective view schematically showing a state of a battery module according to an embodiment of the present invention.
  • 2 is an exploded perspective view schematically illustrating the appearance of some components of a battery module according to an embodiment of the present invention.
  • Figure 3 is a right side view schematically showing the state of the battery module according to an embodiment of the present invention.
  • the battery module 100 includes a plurality of cylindrical battery cells 110 , a bus bar 120 , and at least two or more types of connecting members 130 .
  • the plurality of cylindrical battery cells 110, the battery can 116, and one side of the body of the battery can 116 has a positive electrode A terminal 111 and a negative terminal 112 may be formed.
  • the positive electrode terminal 111 may have an outer surface in the form of a disk exposed to the outside.
  • the negative terminal 112 may be an edge portion positioned to surround the positive terminal 111 .
  • the positive terminal 111 and the negative terminal 112 may be spaced apart from each other by a predetermined distance.
  • the positive electrode terminal 111 and the negative electrode terminal 112 may be configured to be electrically insulated from each other.
  • the positive terminal 111 of the cylindrical battery cell 110 may have a larger outer surface area than that of the negative terminal 112 .
  • cylindrical battery cell 110 is electrically connected to each of the positive terminal 111 and the negative terminal 112 , and includes an electrode assembly (not shown) accommodated in the battery can 116 . can do.
  • the configuration of the cylindrical battery cell 110 since it is widely known to those skilled in the art at the time of filing the present invention, a more detailed description will be omitted herein.
  • the plurality of cylindrical battery cells 110 may be arranged in the vertical direction (Z-axis direction) and the front-back direction (Y-axis direction).
  • the plurality of cylindrical battery cells 110 may be arranged to be spaced apart from each other at a predetermined interval.
  • the plurality of cylindrical battery cells 110 may be arranged in a front-back direction (Y-axis direction) and a left-right direction (X-axis direction).
  • the positive terminal 111 and the negative terminal 112 may be provided on the right side (positive direction of the X-axis) of the plurality of cylindrical battery cells 110 .
  • the bus bar 120 may include an electrically conductive material.
  • the bus bar 120 may include at least one of a copper alloy, an aluminum alloy, and a nickel alloy.
  • the bus bar 120 may have a plate shape.
  • the bus bar 120 may have a shape in which a portion is bent at least once or more.
  • FIG. 4 is a cross-sectional view schematically illustrating a state cut along area A of FIG. 3 .
  • each of the at least two types of connection members 130 may include an electrically conductive material.
  • the connection member 130 may include at least one of a copper alloy, an aluminum alloy, and a nickel alloy.
  • the connecting member 130 may have an elongated body.
  • the connecting member 130 may have a strip shape in which the body is elongated or a wire shape.
  • One end of the connecting member 130 in the extending direction of the body may be joined to the bus bar 120 .
  • one end of the connecting member 130 may be welded to the outer surface of the bus bar 120 .
  • the welding method may be ultrasonic welding.
  • the other end of the connecting member 130 may be bonded to any one of the positive terminal 111 and the negative terminal 112 .
  • the other end of the connecting member 130 may be welded to the outer surface of the positive terminal 111 or the negative terminal 112 .
  • the welding method may be ultrasonic welding.
  • connection members 130 may have different bonding areas depending on the terminal to which they are bonded among the positive terminal 111 and the negative terminal 112 .
  • the bonding area of the at least two or more types of connection members 130 may be different depending on the size of the external surfaces of the positive terminal 111 and the negative terminal 112 exposed to the outside. For example, when the size of the outer surface exposed to the outside of the positive terminal 111 is larger than that of the negative terminal 112 , the area where the connection member 130 and the positive terminal 111 are bonded is different from each other. An area in which the member 130 and the negative terminal 112 are bonded may be larger.
  • connection members 130 By including the connection members 130 , a bonding area between the connection member 130 and the positive terminal 111 or the negative terminal 112 may be optimized.
  • the present invention provides at least two or more types of connection members.
  • the junction area may be set differently according to the type of terminal to which the 130 are joined. Accordingly, in the present invention, even when the battery module 100 is mounted on a vehicle exposed to an environment where frequent vibrations and shocks occur, between the connection member 130 and the positive terminal 111 or the negative terminal 112 . Separation of the joined parts can be effectively reduced. Ultimately, durability of the battery module 100 can be effectively improved.
  • connection members 130 may include a first connection member 131 connected to the negative terminal 112 and a second connection member 132 connected to the positive terminal 111 .
  • first connection member 131 connected to the negative terminal 112
  • second connection member 132 connected to the positive terminal 111 .
  • one end of the first connecting member 131 is joined to the bus bar 120
  • the other end is connected to the negative terminal 112 of the cylindrical battery cell 110 .
  • One end of the second connecting member 132 may be bonded to the bus bar 120 , and the other end may be bonded to the positive terminal 111 of the cylindrical battery cell 110 .
  • a bonding area between the second connection member 132 and the positive terminal 111 may be larger than a bonding area of the first connection member 131 with the negative terminal 112 .
  • the bonding area between the second connecting member 132 and the positive terminal 111 is that of the negative terminal 112 of the first connecting member 131 .
  • the second connection member 132 is bonded to the positive terminal 111 having a relatively larger outer area than the negative terminal 112 with a larger bonding area, the second connection member The bonding force between 132 and the positive terminal 111 may be effectively increased. Accordingly, even when the battery module 100 of the present invention is mounted on a vehicle exposed to an environment where frequent vibrations and shocks occur, the second connecting member 132 and the positive terminal 111 or the negative terminal 112 Separation of the joined portion between the liver can be effectively reduced. Ultimately, durability of the battery module 100 can be effectively improved.
  • FIG. 5 is a perspective view schematically illustrating a state of a first connection member of a battery module according to an embodiment of the present invention.
  • the first connection member 131 may have a wire shape elongated in the longitudinal direction (L).
  • the wire-shaped one end 131a of the first connection member 131 may be bonded to the bus bar 120 .
  • the other wire-shaped end 131b of the first connection member 131 may be bonded to the negative terminal 112 .
  • the wire shape has a narrow diameter and is elongated in the longitudinal direction (L)
  • the first connecting member 131 is a negative terminal having a narrow outer surface exposed to the outside compared to the positive terminal 111 . (112) and has a shape optimized for bonding.
  • FIG. 6 is a perspective view schematically illustrating a state of a second connection member of a battery module according to an embodiment of the present invention.
  • the second connection member 132 may have a strap shape (belt shape) that is elongated in the longitudinal direction L.
  • the strap-shaped one end 132a of the second connecting member 132 may be joined to the bus bar 120 .
  • the other end 132b of the strap shape of the second connection member 132 may be bonded to the positive terminal 111 .
  • the second connecting member 132 may have a plate shape having a rectangular shape in plan view.
  • one surface of the other end 132b facing the positive terminal 111 may be bonded to an outer surface of the positive terminal 111 .
  • one surface of one end 132a facing the bus bar 120 may be joined to an outer surface of the bus bar 120 .
  • the second connecting member 132 has a strap shape, and is optimized to be bonded to the positive terminal 111 with a wider surface than that of the negative terminal 112 , which is exposed to the outside. had
  • the battery module 100 of the present invention may further include a module case 140 .
  • the module case 140 may have an internal space accommodating the plurality of cylindrical battery cells 110 therein.
  • the module case 140 may be a box-shaped case as a whole.
  • the module case 140 may include a first case 145 and a second case 146 .
  • the first case 145 and the second case 146 may be configured to be coupled to each other.
  • the first case 145 and the second case 146 may be coupled to each other by a hook fastening method.
  • the module case 140 may include an electrically insulating material.
  • the electrically insulating material may be polyvinyl chloride or polyethylene terephthalate.
  • the module case 140 may mount the bus bar 120 on the outside.
  • eight bus bars 120 may be mounted on the right side of the module case 140 .
  • the bus bars 120a and 120b positioned at the uppermost and lowermost positions, respectively may have different shapes from the other six busbars 120 .
  • the bus bars 120 positioned at the uppermost and lowermost positions, respectively may be configured to electrically connect only the positive terminal 111 or the negative terminal 112 of the plurality of cylindrical battery cells 110 .
  • the remaining six bus bars 120 will be described in more detail.
  • the module case 140 may include a first exposure hole 141 and a second exposure hole 142 .
  • the first exposure hole 141 may be configured to expose at least a portion of the negative electrode terminal 112 to the outside. That is, the first exposure hole 141 may be configured to pass through the first connection member 131 connected to the negative terminal 112 of the cylindrical battery cell 110 accommodated in the module case 140 . have.
  • the second exposure hole 142 may be configured to expose at least a portion of the positive electrode terminal 111 to the outside. That is, the second exposure hole 142 may be configured to pass through the second connection member 132 connected to the positive terminal 111 of the cylindrical battery cell 110 accommodated in the module case 140 . have.
  • first exposure hole 141 and the second exposure hole 142 may be formed at positions spaced apart from each other by a predetermined distance.
  • An outer wall W of the module case 140 may be positioned between the first exposure hole 141 and the second exposure hole 142 .
  • the battery module 100 of the present invention includes a module case 140 having a first exposure hole 141 and a second exposure hole 142 , and the connection member
  • the elements 131 and 132 can be easily connected to the negative terminal 112 and the positive terminal 111 of the cylindrical battery cell 110 through the first exposure hole 141 and the second exposure hole 142, respectively. have.
  • connection member 130 since the outer wall W of the module case 140 exists between the first exposure hole 141 and the second exposure hole 142 , the connection member 130 and the positive electrode terminal 111 or the Even if a disconnection occurs between the negative terminals 112 , it is possible to prevent the connection member 130 from moving to the adjacent terminals having different polarities.
  • the positive terminal By exposing at least a portion of the 111 and the negative terminal 112 to the outside, the exposed area can be minimized, and the possibility of contact with an external conductive material can be minimized, thereby effectively improving the safety of the battery module 100 . can be raised
  • FIG. 7 is a partial right side view schematically showing a part of a battery module according to another embodiment of the present invention.
  • the module case 140A of the battery module 100 is compared with the module case 140 of FIG. 3 , a protrusion 143 , and an insertion groove G ) may be further provided.
  • Other configurations of the module case 140A of the battery module 100 of FIG. 7 have the same configurations as the battery module 100 of FIG. 3 , and a description of these configurations will be omitted.
  • the protrusion 143 may be a portion protruding toward the connection member 130 from the edge of the first exposure hole 141 or the second exposure hole 142 .
  • the protrusions 143 may have different shapes depending on the first connecting member 131 or the second connecting member 132 inserted into the insertion groove (G). For example, as shown in FIG. 7 , a first protrusion 143 protruding toward the first connection member 131 in the form of a wire may be provided in the first exposure hole 141 .
  • the second exposure hole 142 may be provided with two second protrusions 143 protruding from both sides of the edge toward the strap-shaped second connection member 132 .
  • the protrusion 143 may be provided with an insertion groove G so that a portion of the connecting member 130 is inserted in a portion thereof.
  • one protrusion 143 may be provided with an insertion groove G so that a portion of the wire-shaped first connecting member 131 is inserted.
  • the other protrusion 143 may be provided with an insertion groove G so that a portion of the strap-shaped second connection member 132 is inserted.
  • the bus bar 120 of the battery module 100 may include an extension part 121 and a connection part 122 .
  • the extension portion 121 may be a body portion of the bus bar 120 .
  • the extension part 121 may be disposed on one side of the plurality of cylindrical battery cells 110 on which the positive terminal 111 and the negative terminal 112 are located.
  • the extension part 121 may be spaced apart from the plurality of cylindrical battery cells 110 by a predetermined distance in an outward direction.
  • the bus bar 120 may be mounted on the right side of the module case 140 . That is, the bus bar 120 may be positioned in a direction opposite to the plurality of cylindrical battery cells 110 with the module case 140 interposed therebetween.
  • the extension part 121 may have a shape extending along a direction in which the plurality of cylindrical battery cells 110 are arranged. That is, the extension part 121 may be located on one side of the plurality of cylindrical battery cells 110 on which the positive terminal 111 and the negative terminal 112 are located. This may be such that the extension part 121 may be positioned adjacent to the positive terminal 111 and the negative terminal 112 of the plurality of cylindrical battery cells 110 .
  • connection part 122 may be a portion protruding from the extension part 121 toward the positive terminal 111 or the negative terminal 112 .
  • connection part 122 may be configured to be joined to a portion of the first connection member 131 or the second connection member 132 .
  • the bus bar 120 includes an extension 121 extending in a zigzag in the vertical direction (the Z-axis direction in FIG. 1 ), and the positive terminal from the extension 121 . (111) or a connection part 122 protruding toward the negative terminal 112 may be provided.
  • the connection part 122 may be joined to an end of the first connection member 131 or the second connection member 132 .
  • the extension 121 and the connecting portion 122 are provided on the bus bar 120 to minimize the extension length of the connecting member 130 . That is, the extension part 121 and the connection part 122 are configured so that a part of the bus bar 120 is adjacent to the positive terminal 111 or the negative terminal 112 so that the connection part 122 and the positive electrode are adjacent to each other.
  • the extension length of the connecting member 130 configured to connect the terminal 111 or the negative terminal 112 to each other can be minimized. Accordingly, according to the present invention, as the length of the connecting member 130 increases, it is possible to effectively reduce an increase in material cost and an increase in the risk of disconnection due to collision with an external material.
  • the plurality of cylindrical battery cells 110 may be arranged in a plurality of rows and columns.
  • the plurality of cylindrical battery cells 110 may be arranged in a row direction (Y-axis direction) and a column direction (Z-axis direction).
  • a plurality of cylindrical battery cells 110 arranged in each row may be disposed to be spaced apart from each other in a column direction.
  • the plurality of cylindrical battery cells 110 arranged in one row may be disposed to be spaced apart from each other in the upper direction or spaced apart in the lower direction with respect to the center in the vertical direction.
  • the extension portion 121 of the bus bar 120 may extend in a zigzag manner along a direction in which the plurality of cylindrical battery cells 110 are arranged.
  • the extension part 121 may extend in a row direction (Y-axis direction) and alternately extend in an upward direction and a downward direction. That is, the extension portion 121 may have a zigzag extension in the front-rear direction.
  • the bus bar 120 extends in a zigzag direction in the arrangement direction of the plurality of cylindrical battery cells 110 , thereby minimizing the extension length of the connecting member 130 . have. That is, since a portion of the bus bar 120 extends in a zigzag manner to be adjacent to the positive terminal 111 or the negative terminal 112 , the extension length of the connecting member 130 may be minimized. Accordingly, according to the present invention, as the length of the connecting member 130 increases, it is possible to effectively reduce an increase in material cost and an increase in the risk of disconnection due to collision with an external material.
  • the bus bar 120 of the battery module 100 has a fixing protrusion on the connection part 122 when compared with the bus bar 120 shown in FIG. 4 .
  • (P) may be further provided.
  • Other configurations of the bus bar 120 are the same as those of the bus bar 120 shown in FIG. 4 , so a description of the configurations will be omitted.
  • the fixing protrusion P may be configured to surround an end of the first connecting member 131 .
  • the fixing protrusion P may be formed so that a portion of the connection part 122 protrudes outward.
  • the fixing protrusion P may be configured to surround at least one side of an end of the first connecting member 131 .
  • the fixing protrusion P is, for example, of the first connecting member 131 , as shown in FIG. 7 , the bus bar 120 is disposed at an end of the first connecting member 131 in three directions.
  • a fixing protrusion P configured to surround the side portions may be provided.
  • the fixing protrusion P may have a shape protruding toward the cylindrical battery cell 110 (outward direction).
  • a portion of the connecting portion 122 of the bus bar 120 is provided with a protruding fixing protrusion P, so that the first connection joined to the connecting portion 122 is provided. It is possible to prevent the end of the member 131 from being detached by an external impact. That is, the fixing protrusion P may prevent an external material from being separated by colliding with the joint portion between the end of the first connecting member 131 and the connecting portion 122 . Therefore, according to the present invention, it is possible to minimize the connection failure between the bus bar 120 and the connecting member 130, and thus, it is possible to effectively increase the durability.
  • the battery pack (not shown separately) according to an embodiment of the present invention includes at least one or more of the battery modules 100 and a BMS electrically connected to the bus bar 120 of the battery module 100 . can do.
  • the BMS may include various circuits or devices to control charging and discharging of the plurality of battery cells.
  • a vehicle (not shown separately) may include at least one or more of the battery module 100 and an accommodating space for accommodating the battery module 100 .
  • the vehicle may be an electric vehicle, an electric scooter, an electric wheelchair, or an electric bike.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un module de batterie garantissant une fiabilité dans des connexions électriques entre des composants internes et ayant une durabilité améliorée, un bloc-batterie le comprenant, et un véhicule. A cet effet, le module de batterie selon la présente invention comprend : une pluralité d'éléments de batterie cylindriques ayant une borne de cathode et une borne d'anode sur un côté de celles-ci ; une barre omnibus comprenant un matériau électriquement conducteur et ayant une forme de plaque ; et au moins deux éléments de connexion qui comprennent un matériau électriquement conducteur, comprenant un corps qui est allongé, ont une extrémité, dans la direction dans laquelle s'étend le corps, liée à la barre omnibus, et ont l'autre extrémité liée à l'une de la borne de cathode et de la borne d'anode, et ont différentes zones de liaison en fonction de la borne liée parmi la borne de cathode et la borne d'anode.
PCT/KR2021/006947 2020-06-30 2021-06-03 Module de batterie, bloc-batterie le comprenant et véhicule Ceased WO2022005032A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP21832306.1A EP4109662A4 (fr) 2020-06-30 2021-06-03 Module de batterie, bloc-batterie le comprenant et véhicule
JP2022552473A JP7575471B2 (ja) 2020-06-30 2021-06-03 バッテリーモジュール、それを含むバッテリーパック、及び自動車
CN202180023866.2A CN115336098B (zh) 2020-06-30 2021-06-03 电池模块、包括该电池模块的电池组以及车辆
US17/909,134 US12394869B2 (en) 2020-06-30 2021-06-03 Battery module, battery pack comprising the same, and vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0080587 2020-06-30
KR1020200080587A KR102809421B1 (ko) 2020-06-30 2020-06-30 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차

Publications (1)

Publication Number Publication Date
WO2022005032A1 true WO2022005032A1 (fr) 2022-01-06

Family

ID=79316448

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/006947 Ceased WO2022005032A1 (fr) 2020-06-30 2021-06-03 Module de batterie, bloc-batterie le comprenant et véhicule

Country Status (6)

Country Link
US (1) US12394869B2 (fr)
EP (1) EP4109662A4 (fr)
JP (1) JP7575471B2 (fr)
KR (1) KR102809421B1 (fr)
CN (1) CN115336098B (fr)
WO (1) WO2022005032A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023154867A1 (fr) * 2022-02-11 2023-08-17 Atieva, Inc. Interconnexions de plaque collectrice et de liaison de fil pour module de batterie

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4235941A1 (fr) * 2022-02-25 2023-08-30 Molex, LLC Module de connexion de batterie
CN116936953B (zh) * 2023-09-14 2024-02-23 宁德时代新能源科技股份有限公司 电极组件、电池单体、电池及用电装置
CN221353115U (zh) * 2023-10-30 2024-07-16 惠州亿纬锂能股份有限公司 电池以及电池模组
KR20250155833A (ko) * 2024-04-24 2025-10-31 주식회사 엘지에너지솔루션 전지셀 어셈블리, 배터리팩 및 그것을 포함한 이동수단

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4660328B2 (ja) * 2005-09-15 2011-03-30 三洋電機株式会社 電源装置
JP4733248B2 (ja) * 2000-06-20 2011-07-27 本田技研工業株式会社 セルモジュール構造
WO2014155412A1 (fr) * 2013-03-25 2014-10-02 三洋電機株式会社 Système de gestion d'accumulateurs électriques
KR20180129115A (ko) * 2017-05-25 2018-12-05 주식회사 엘지화학 원통형 셀 연결 분리형 버스바와 이를 이용한 배터리 모듈 및 제조 방법
WO2019124107A1 (fr) * 2017-12-19 2019-06-27 パナソニックＩｐマネジメント株式会社 Barre omnibus, et empilement de cellules
KR20200080587A (ko) 2018-12-27 2020-07-07 대우조선해양 주식회사 클라우드 기반 선박의 중앙제어 시스템

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638118U (ja) 1992-10-21 1994-05-20 日本メクトロン株式会社 ワイヤ付き平型母線
US9219262B2 (en) * 2011-04-28 2015-12-22 Toyota Jidosha Kabushiki Kaisha Assembled battery and vehicle
US10347894B2 (en) * 2017-01-20 2019-07-09 Tesla, Inc. Energy storage system
CN107732607B (zh) 2016-08-12 2024-04-09 泰科电子(上海)有限公司 引线框架、连接组件、信号采样装置及电池包
JP2018077933A (ja) 2016-11-07 2018-05-17 トヨタ自動車株式会社 電池モジュールの製造方法
KR102246768B1 (ko) * 2016-12-09 2021-04-30 삼성에스디아이 주식회사 배터리 팩
US11088410B2 (en) 2016-12-23 2021-08-10 Sk Innovation Co., Ltd. Battery module
US10720626B2 (en) 2016-12-29 2020-07-21 Romeo Systems, Inc. Systems and methods for battery structure, interconnects, sensing, and balancing
KR101977454B1 (ko) * 2017-01-04 2019-05-10 삼성에스디아이 주식회사 배터리 팩
KR102415121B1 (ko) * 2017-09-22 2022-06-30 삼성에스디아이 주식회사 배터리 팩
KR102288405B1 (ko) 2017-12-26 2021-08-09 주식회사 엘지에너지솔루션 공간 활용성과 안전성이 향상된 원통형 전지셀 조립체 및 이를 포함하는 배터리 모듈
US10243184B1 (en) * 2018-02-03 2019-03-26 Thor Trucks Inc. Modular battery configured for wire bonding
CN112673521B (zh) 2018-09-26 2023-04-18 松下知识产权经营株式会社 电池模块
JP7135693B2 (ja) 2018-10-09 2022-09-13 トヨタ自動車株式会社 組電池
CN209401797U (zh) 2018-12-28 2019-09-17 深圳市国威科创新能源科技有限公司 一种新型电池模组

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4733248B2 (ja) * 2000-06-20 2011-07-27 本田技研工業株式会社 セルモジュール構造
JP4660328B2 (ja) * 2005-09-15 2011-03-30 三洋電機株式会社 電源装置
WO2014155412A1 (fr) * 2013-03-25 2014-10-02 三洋電機株式会社 Système de gestion d'accumulateurs électriques
KR20180129115A (ko) * 2017-05-25 2018-12-05 주식회사 엘지화학 원통형 셀 연결 분리형 버스바와 이를 이용한 배터리 모듈 및 제조 방법
WO2019124107A1 (fr) * 2017-12-19 2019-06-27 パナソニックＩｐマネジメント株式会社 Barre omnibus, et empilement de cellules
KR20200080587A (ko) 2018-12-27 2020-07-07 대우조선해양 주식회사 클라우드 기반 선박의 중앙제어 시스템

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023154867A1 (fr) * 2022-02-11 2023-08-17 Atieva, Inc. Interconnexions de plaque collectrice et de liaison de fil pour module de batterie
US12381291B2 (en) 2022-02-11 2025-08-05 Atieva, Inc. Collector-plate and wire-bond interconnections for battery module

Also Published As

Publication number Publication date
CN115336098B (zh) 2024-10-25
EP4109662A4 (fr) 2024-03-06
CN115336098A (zh) 2022-11-11
KR20220001989A (ko) 2022-01-06
EP4109662A1 (fr) 2022-12-28
JP2023516318A (ja) 2023-04-19
JP7575471B2 (ja) 2024-10-29
KR102809421B1 (ko) 2025-05-16
US20230095885A1 (en) 2023-03-30
US12394869B2 (en) 2025-08-19

Similar Documents

Publication Publication Date Title
WO2022005032A1 (fr) Module de batterie, bloc-batterie le comprenant et véhicule
WO2020138869A1 (fr) Module de batterie comportant un connecteur monté sur une fpcb, et bloc-batterie et véhicule le comprenant
WO2019088803A1 (fr) Bloc-batterie à structure d'assemblage améliorée
WO2019117514A1 (fr) Module de batterie comprenant un ensemble de barres omnibus
WO2023027511A1 (fr) Module de batterie doté d'une structure améliorée de connexion par liaison filaire entre une plaque de barres omnibus et un ensemble icb, et bloc-batterie comprenant celui-ci
WO2019107717A1 (fr) Module de batterie ayant une plaque de dissipation de chaleur
WO2021182779A1 (fr) Module de batterie comportant une barre omnibus, bloc-batterie et véhicule
WO2013019008A2 (fr) Module de batterie à stabilité améliorée
WO2017082528A1 (fr) Module de batteries et bloc-batteries l'incluant
WO2015080466A1 (fr) Module de batterie et batterie le comprenant
WO2021256878A1 (fr) Module de batterie, bloc-batterie comprenant ce dernier, véhicule, et procédé de fabrication de bloc-batterie
WO2013002507A2 (fr) Module de batterie et ensemble de batterie le comprenant
WO2017039180A1 (fr) Module de batterie à structure de fixation améliorée
WO2017217641A1 (fr) Module de batterie, bloc-batterie et véhicule les comportant
WO2022145636A1 (fr) Module de batterie comprenant de multiple éléments de batterie parallèles
WO2014084474A1 (fr) Module de batterie et bloc-batterie le comportant
WO2015190721A1 (fr) Support de piles et bloc-batterie le comprenant
WO2021206426A1 (fr) Module de batterie comprenant un module de barre omnibus, bloc-batterie le comprenant et dispositif électronique
WO2022019549A1 (fr) Module de batterie à connexion simplifiée entre le fil d'électrode et l'élément de détection de tension, et bloc-batterie le comprenant
WO2022019550A1 (fr) Module de batterie ayant une connexion simplifiée entre un fil d'électrode et un élément de détection de tension et bloc-batterie le comprenant
WO2009110772A2 (fr) Batterie modulaire de dimension moyenne ou forte possédant un élément de raccordement de borne d'électrode et un élément de jonction isolant
WO2021235783A1 (fr) Module de batterie, bloc-batterie le comprenant, et véhicule
WO2021002710A1 (fr) Bloc-batterie comprenant une plaque de connexion, dispositif électronique et automobile
WO2017061707A1 (fr) Module de pile et bloc-piles le comportant
WO2022173200A2 (fr) Module de batterie, bloc-batterie et véhicule

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21832306

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022552473

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2021832306

Country of ref document: EP

Effective date: 20220923

NENP Non-entry into the national phase

Ref country code: DE

WWG Wipo information: grant in national office

Ref document number: 17909134

Country of ref document: US